Shock-ajsojbes



E. P. THOMAS.

SHOCK ABSORBER. APPLscATloN FILED JAN.18,19|B.

1313,763 PatemedAug.19,1919.

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THEEAS, 0F CENTRALE., WASHIXGTGQL Application. filed Ieeuery m `7 '1 H. A i "W i o mit wfwf'n may Gemeen.

Be 1t known tet EDMUND P, THQMA'S,

e citizen of the United Sto tes, and e resident of cien'ti'eiie? iii the county of Lewis and State of "Wasi gtoo, have invented a new and lmpoved Sheik-Absorber, ef which the oiioviiig is e '.uh dem; and exact deseri'lotie ivy'ixiv on has object to provide e shock ebso'bei with :i novel/form of velve foi' eontroiiing the e fiuid from e Cyindei' threudi poets 'eediiig to e, bypass, the valve being opeiehie iti-om without the shock absorbe?.

Aoothei' object of the in'ventieisii is to pio vide :i waive means 'o :i 'few et ports in the cjydnt'iei which 'wii contioi the passage of e fini@ thiough in eccoi'dence with a predetermined ratio.

Stiii. anet' object of the invention is to .hie-2te ofi 'the invention will ai' m *ehewmgg specification, m

epi

the mvention Whieh. the is deeeribed.

n the ditwinfe @eters refer to ein, guies, in, which.u

., simile? i'efeence chaniai m both of the F i is sectioned elevation o the ini/eration. and

, mi be There is: pien side the he ef'iindeY :deo die posed. il there ie e simil othei' ond et the e efe disposed.

Specification of Lettere Eatent.

' are spaced apart around 'the e c .Y

neem; fof: Connecting theJ ber 26 which will press t le e. sectioned View on the hne- 2-7-2 Petemted fiel le i915.- semi Nn. MM35.

Intermediate the ends o the ey there are a set of ports 19 and i4 which eoijd communication terior of the cylinder and the 'hv- Which is formed by the eyiiiidei 5 easing 6. In addition to g3-ofte 19a there is another' set simiizu' ,end 20a which are also spaced et; 1 e the cylinder intermediate the es o c viinder. As Wili be eeen by efemi Fig. l of the drawings, the portso are disposed nearer the heet e.; t to the head 8 and the 'i9 disposed nearer the heed 8 than me the heed 9. There are also poi'te El zuid 22 in the cylinder 5 which ere disposedl hetw the port 19a and the head 8. The poid and 22 and 19 are disposed in ifo-w the How of e uid through the be controlled by valve Whiv form of e leef Spring secured ite to the cylinder 5 adjacent the head Seemed to the' other end 25 ezt 23, there is a memhei 26 which ie il; po. ltioli for engagement hy the end 2"? of 28 which meshes in e threaded oiiif the cesing 6. It will he uiideietoof' screw 28 maj? be turned, 'tem with shock ebsorher to press iowerdiv e direction of the ports 2, Q2 that inasmuch es the. votive the cylinder adjacent the i member 26 is secured to the a point spaced et considei'ehie die from, when the valve is moti reiativeiy to the poits 2l, 2Q munieation through the port Qi.. he restricted to greater ext@ the communication which p the ports 22 :md 19, and tha cation between the poit 22 stiieted with reference to 'me *o communication through goort also be Seen that this ieeti'ietieifr. o municetion through the efer'enee to the port ance with a predetermined n similar manner e ve construction to the valve it cylinder 5 at 3i 'adjacent the veive 30 controlling Communie the ports 32 and 83 which port 202e row of pori/S, To

- in a socket 38, Aformed a detachable part of the valve 30, there is secured at 33 a member 34 which is operated by a screw 35 mesh-` ing in athreaded oriice 36 in the cas ng At all times the valve 30 restricts communication through the port 32 as compared with the communication which is affordedv through the port 33, and in the same manner the'valve 30 restricts communication through the port 33 relatively to the communication afforded through the port 20a.

lYhen the shock absorber is in use andA the ports, when the air or other Huid which may be used is compressed between the piston 13 and the head 9 and a partial vacuum is produced between the piston v13 and the head 8. @n the return movement of the piston, the air. or other fluid is compressed between the piston 13 and the head 8' and a partial vacuum occurs between the piston 13 and the head 9. By the adjustment of the valves 23 and 30, it is possible, when the shock absorber is used, to compress a larger volume of ai-r or other ton 13 and the heads 8 and 9, or when desired, it is possible to restrict the ports 20, 21, 32 andv 33 to delay the flow of the air or other fluid through the ports when the air or other fluid is compressed by the piston 13 against the heads 8 and 9.

The outer end ot the piston' rod 12 is provided with a ball 37 'which is 'disposed by the' members 39 and 40 which are .held in to each other by the bolts 41, the member 39 forming a part of a bracket 42 which may besecured by any suitable means to the body p of an automobile or other-vehicle.`

In the head 9 there is a threaded orifice 43 in which meshes athreaded stud 44 having a ball 45 which is disposed in a ysocket 46 formed by the members 47 and 48 which are held in position by bolts 49, the member 48 being connected with an aXle 'housing 50 or with som'e other portion of a chassis or. the running parts of a vehicle. f

.as illustrated in the drawings, the member 48 forms a part of an ellq'ow 51 having a` threaded shank 52 which meshes in a threaded opening 53 in a bracket 54, having 55, the bracket 54 and its detachable part 55 being secured around the axle housing 50 by means of bolts 56.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

l. ln a shock absorber, a cylinder having two heads, one with an opening, a piston in the cylinder, a piston rod secured to the piston and disposed through the opening, a

casing forming with the cylinder a passage,

f'luid between'the pisposition relatively -cylinder, and disposed in the opening,

the cylinder having a row of ports, and valve means operable from. without the shock absorber for controlling the flow of a. fluid through the ports in accordance with a predetermined ratio.

2. In a shock absorber, a cylinder two heads, one with an opening', a piston in the cylinder, a piston. rod secured to the piston and disposedlthrough the opening, a

casing forming with the cylinder a lay-pass,-

In a shock absorber, a cylinder having two heads,.one with an opening, a piston in the cylinder, a piston rod secured lto the piston land disposed through the opening, a casing forming with the cylinder a passage, the cylinder having a row of ports, and a valve means operable from without the shock: absorber for controlling the flow of a fluid through the ports, the valve means being positioned angularly with relation to the cylinder and normally adjusted inwardly. Y

4. A shock absorber, having a piston dis-.

posed in a cylinder with a by-pass of a plurality of ports characterized by a leaf valve securedat oneend to the cylinder and operable from without the shock absorber for controlling the How of a fluid through one of the parts. I

5. A vshock absorber having a piston disposed in 'a cylinder connected with 'a bypass bytwo rows of ports, one row adjacent .I 'loA having i each Vend of the cylinder characterized by two lead valves, each secured at one end to the cylinder, one beyond onevrow of ports and the other beyondthe otherrow of vports for controlling the vdow of' a fluid throughV tl'ie ports. l

6. rIn' a. shock'absorber, a cylinder having two heads, one With'an opening', a casin having an orice and which forms with the a lay-pass, the vcylinder having ports leading to the by-pass, a piston inthe a piston rod secured tothe piston a valve secured at one end to the cylinder for controlling the flow of a fluid through one of the ports, and a control member disposed `through the orifice for operating the valve.

7. In a shock absorber, a cylinder having tlwo heads, one with an opening, a casing having an orifice which forms inder a by-pass, the cylinder having ports leading to the by-pass, a piston in the cylinder, a piston rod secured to the piston and disposed in the opening, a leal spring secured at one end to the cylinder which acts as a valve forcontrolling the flow of a fluid,L through one of the with the cyl- 5 ports, a control member 13oA disposed through the orifice for operating the leaf spring7 and means on the leaf .spring for engagement hv the control menno/en 8. a shock absorber, e cylinder having two heads, one with an opening, a casing having an ori'ice which with the cylinder forms e 'by-pass, the cylinder having ports leading to the 'oy-pass, a piston in. the cylinder, a piston rod secured to the piston and secured in the opening, leaf spring secured at one end to the cylinder for control'u ling the How of a fluid through one oi' the ports, a member secured at the other end of the leaf spring and disposed longitudinally thereof, and a control member disposed through the oriiice and engaging the first member for the purpose speeiied.

9. A shook absorber, having,M a piston disposed in a eylinder, connected with a by pass by plurality of ports characterized by a leerc valve secured at one end te the cylinder and operable from Without the shook absorber for controlling the flow of e duid through the ports in accordance with a predetermined ratios it?. ln a shock absorbe-r1, a cylinder having two heads, one with an opening, a rasing forming with the cylinder a. bff-pass,f

the cylinder having two sets of ports disposed around its sides, one set being nearer one head than the other set, the cylinder also having additional ports disposed between eaeh of the two sets of ports and its head, a piston in the cylinder, a piston rod secured to the piston and disposed through the opening in the head, and "alve means operable from Without the casing for controlling the iiovv of a Huid through the said additional ports in accordance With a predetermined ratio.

il. ln a shook absorber, a cylinder having two heads, one with an opening, a casingphaving an orifice ,forming with the cylinder a ley-pass, the cylinder having tWo sets of ports disposed around its sides, one set being nearer one head than the other set, the cylinder also having additional ports disposed between the two sets of ports and its heads, a piston in the cylinder, a pis ton rod secured to the piston and disposed through the opening in the head, tWo valves,

each seonred'at one of its ends to the cyl' inder for controlling the iow .of a uid through the additional ports, and control means operable from Without the shock absorber for operating the valves.

l EDMUND P. reforms. 

